i already quoted on a job to render board,rend aid,pink mesh,and apply ivory weber monocoche but someone from the technical department at weber told me you cant use monacoche on a timber framed house as its more suseptable to crack....the home owner wants me to go ahead with it anyway...does anyone have any advice...has anyone used a monocoche finish on timber frame?...is it just web er covering theyre backs or is there real danger of cracking?...thanks for any advice fellas
monocoche on timber framed house?
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plasterjfe
Private Member
mono isnt good on a timber frame, its made for blocks. the spec is wrong anyway
you should be using weber LAC base and mesh not rendaid followed by weber M1 mono not pral
job will look same but have a much better chance of not cracking as your using the correct polymer product.
moncouche render in general is hard and brittle so when applied over timber frame cracks appear intime as there is no movement in the product and its heavy and hard over background that is prone to movement and vibration.
anyway its a no brainer - why use rendaid and pral when there is a product for what you are doing that looks the same in the M1
you should be using weber LAC base and mesh not rendaid followed by weber M1 mono not pral
job will look same but have a much better chance of not cracking as your using the correct polymer product.
moncouche render in general is hard and brittle so when applied over timber frame cracks appear intime as there is no movement in the product and its heavy and hard over background that is prone to movement and vibration.
anyway its a no brainer - why use rendaid and pral when there is a product for what you are doing that looks the same in the M1
Putzmiester
Active Member
Or use parex mattie with EHI over the top
User___removed
Well-Known Member
Take this advice if I was you.the manufactures are not going out there to help!!
Renderking
New Member
What putz said
thanks for the replies fellas....i did ask what products i could use they said no coloured renders were suitable...we've already baught the rend aid etc...im assuming that'll be ok..but ill take ur advice on the finish...they want a smooth finish rather that a scraped finish is that weber m1 stuff ok to sponge?
Runswithscissors
Private Member
Hello mate
All timber frames settle in the first 12 to 18 months. You need to detail the boarded render properly to start off with, to allow for the shrinkage, and make sure that the products used are suitable for the application.
As JFE has said above, Mono is not really suitable for TF as it is brittle when dry and heavy.... some Mono products are lighter and more suitable, but be guided by the render system suppliers (they will warrant and advise what will work and what will not)
That said - if the client says he wants it, get your concerns in writing, with his John Hancock on the paper so he accepting the risk, then do what he says.....
I am the Knauf Aquapanel Exterior contact, you can find my contact details on my profile (left click on my forum name, top left, click through to my profile and find my details), feel free to get in touch if you want more assistance
Good Luck!
Rich
All timber frames settle in the first 12 to 18 months. You need to detail the boarded render properly to start off with, to allow for the shrinkage, and make sure that the products used are suitable for the application.
As JFE has said above, Mono is not really suitable for TF as it is brittle when dry and heavy.... some Mono products are lighter and more suitable, but be guided by the render system suppliers (they will warrant and advise what will work and what will not)
That said - if the client says he wants it, get your concerns in writing, with his John Hancock on the paper so he accepting the risk, then do what he says.....
I am the Knauf Aquapanel Exterior contact, you can find my contact details on my profile (left click on my forum name, top left, click through to my profile and find my details), feel free to get in touch if you want more assistance
Good Luck!
Rich
Render Systems
Private Member
sack the architect bloody divvy
plasterjfe
Private Member
rendaid is a scud/slurry or stipple coat to even a background or privide a key its not what you would normally use over boards. it has a very coarse random grit too swap it for weber LAC base
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